- All sections
- C - Chemistrymetallurgy
- C22C - Alloys
- C22C 21/02 - Alloys based on aluminium with silicon as the next major constituent
Patent holdings for IPC class C22C 21/02
Total number of patents in this class: 1871
10-year publication summary
|
151
|
153
|
158
|
127
|
116
|
124
|
122
|
160
|
154
|
92
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| UACJ Corporation | 701 |
100 |
| Novelis Inc. | 752 |
82 |
| Constellium Neuf-brisach | 137 |
54 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2875 |
54 |
| Nippon Light Metal Company, Ltd. | 666 |
54 |
| Nippon Steel Corporation | 6296 |
42 |
| Arconic Technologies LLC | 334 |
40 |
| ArcelorMittal | 2315 |
39 |
| The Furukawa Electric Co., Ltd. | 3675 |
36 |
| Resonac Corporation | 2837 |
30 |
| Aleris Rolled Products Germany GmbH | 62 |
23 |
| POSCO Co., Ltd. | 1570 |
23 |
| GM Global Technology Operations LLC | 15114 |
22 |
| Showa Denko K.K. | 2214 |
22 |
| Novelis Koblenz GmbH | 85 |
22 |
| BYD Company Limited | 5064 |
18 |
| Federal-Mogul Nurnberg GmbH | 134 |
17 |
| Furukawa Automotive Systems Inc. | 591 |
17 |
| Rio Tinto ALCAN International Limited | 214 |
17 |
| ThyssenKrupp Steel Europe AG | 956 |
17 |
| Other owners | 1142 |